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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 34, Iss. 20 — Oct. 15, 2009
  • pp: 3056–3058

Kerr-lens mode-locked femtosecond Cr 2 + :ZnSe laser at 2420 nm

M. Natali Cizmeciyan, Huseyin Cankaya, Adnan Kurt, and Alphan Sennaroglu  »View Author Affiliations

Optics Letters, Vol. 34, Issue 20, pp. 3056-3058 (2009)

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We describe a cw Kerr-lens mode-locked Cr 2 + :ZnSe laser pumped by a 1800 nm thulium fiber laser. The astigmatically compensated asymmetric x cavity contained a 2.4-mm-long Cr 2 + :ZnSe sample with a pump absorption coefficient of 11.6 cm 1 and was operated with a 1% output coupler. The dispersion compensation was achieved by using a MgF 2 prism pair. During Kerr-lens mode-locked operation, we could generate 95 fs pulses at a pulse repetition rate of 94.3 MHz and with 40 mW of output power. The center wavelength of the pulses was 2420 nm. The pulses had a spectral width of 69 nm and a time–bandwidth product of 0.335, which is close to the transform limit for hyperbolic secant pulses.

© 2009 Optical Society of America

OCIS Codes
(140.3580) Lasers and laser optics : Lasers, solid-state
(140.4050) Lasers and laser optics : Mode-locked lasers
(140.5680) Lasers and laser optics : Rare earth and transition metal solid-state lasers
(140.7090) Lasers and laser optics : Ultrafast lasers
(320.2250) Ultrafast optics : Femtosecond phenomena
(320.7090) Ultrafast optics : Ultrafast lasers

ToC Category:
Lasers and Laser Optics

Original Manuscript: June 4, 2009
Manuscript Accepted: July 29, 2009
Published: October 5, 2009

M. Natali Cizmeciyan, Huseyin Cankaya, Adnan Kurt, and Alphan Sennaroglu, "Kerr-lens mode-locked femtosecond Cr2+:ZnSe laser at 2420 nm," Opt. Lett. 34, 3056-3058 (2009)

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